"Eqv" Equivalence (Operators)

"Eqv" Equivalence Version 5 (Java)

Action group: Operators

Description

An identity (equality) operator that returns True if both operands have the same value.

Action icon

Settings of parameters

Property	Description	Type	Filling example	Mandatory field
Parameters
First operand	Value or variable of the first boolean operand	Robin.Boolean	true	Yes
Second operand	Value or variable of the second boolean operand	Robin.Boolean	true	Yes
Results
Result	Variable containing the result of the operation	Robin.Boolean	true

Special conditions of use

None.

Example of use

Task

There is a "Logical variable 1" with value = true and "Logical variable 2" with value = false. We need to check the following expression: Logical variable 1 is equal to Logical variable 2. If the result is positive, output a dialog box with a message - true, if the result is negative, the message - false.

Solution

Use the actions "Equivalence" and "Show message".

Implementation

Assemble a robot scheme consisting of actions:
Create a numeric variable "Variable 3" into which the result of the "Equivalence action will be written.
Move the "Equivalence" action to the workspace and set its parameters.
Move the "If" action to the workspace and specify "Logical variable 3" in the action parameter.
In the "True" branch, add the "Show message" action and set its parameters.
In the "False" branch, add the "Show message" action and set its parameters.
tart the robot using the "Start" button in the top panel.